v3.25.4
14. REVENUE AND VENDOR CONCENTRATIONS - Digital currency mining segment major suppliers (Details) - Customer Concentration Risk [Member] - Accounts receivable
3 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Bitmain Technologies    
Product Information [Line Items]    
Concentration Risk Threshold Percentage 0.00% 94.00%
Canaan U.S. Inc    
Product Information [Line Items]    
Concentration Risk Threshold Percentage 98.00% 0.00%